Heney dugan



H; DUGAN.

(No Model,)

VEHICLE AXLE.

No. 250,221. PatentedNov. 29,1881.

INVENTOR WITNESSES ATTORNEYS.

UNITED STATES PATENT OFFICE.

HENRY DUGAN, OF MOUNT PLEASANT, MICHIGAN, ASSIGNOR OF ONE-HALF TO FRED S. DAINS AND JAMES MUDFORD, BOTH OF SAME PLACE.

VEHICLE-AXLE.

SPECIFICATION forming part of Letters Patent No. 250,221, dated November 29, 1881.

Application filed July 12, 1881. (No model.)

To all whom it may concern:

Be it known that I, HENRY DUGAN, of Mount Pleasant, in the county of Isabella and State of Michigan, have invented certain useful Improvements in Axles, of which the following is a specification.

The object of my invention is to prevent the rapid wearing oil of the axle, and facilitate lubricating the axle, and replacing parts that have become wore off.

The invention consists in an axle having a bearing-thimble screwed on its outer end and a sleeve with an annular shoulder screwed on the inner end of the beveled part of the axle, passing into the axle-box, the axle-box being held on the axle by a threaded collar screwed into the rear end of the box and resting against the shoulder of the sleeve at the inner end of the beveled part of the axle.

In the accompanying drawings, Fignre 1 is a longitudinal sectional elevation of my improved axle. Fig. 2 is a cross-sectional elevation of the same on the line a; 00, Fig. 1.

Similar letters of reference indicate corresponding parts.

A thinible, A, of steel, brass, &c., is screwed on the outer end of the rounded and tapering part B of the square or round axle O, and a sleeve, D, of steel, brass, &c., and provided with an annular shoulder, E, is screwed on the inner end of the tapering part B of the axle. The axle-box F fits closely on the thimble A and on the sleeve D and shoulder E, and is provided at its inner end with an internal screw-thread. A loose collar or sleeve, Gr, provided with an external screw-thread and with an annular shoulder, H, is mounted on the axle O behind the axle-box F. The axle-box is provided at its inner end with a grease-cup, J. The collar G is screwed into the inner end of the axle-box F, the edge of this collar resting against the annular shoulder E of the sleeve 1) on the axle, and the shoulder H resting against the inner end of the axle-box F. The axle-box is thus held on the axle, but is free to turn. The bearing of the axle on the box is on the thinible A and the sleeve D, which can be removed and replaced by others very conveniently when worn off.

The axle can be greased without being removed from the axle-box, for the lubricant can flow from the cup J into the axle-box, and, as the cup is beyond the inner end of the hub, it can be filled "ery conveniently.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The combination, with the axle O and the axle-box F, of the sleeve D, the collar Gr, and the thiinble A, substantially as herein shown and described, and for the purpose set forth.

HENRY DUGAN. 

